Base | Representation |
---|---|
bin | 101111100110011101… |
… | …0000100001001010101 |
3 | 100202212000202201022101 |
4 | 1133030322010021111 |
5 | 3133322314134310 |
6 | 114543220402101 |
7 | 10246104562303 |
oct | 1371472041125 |
9 | 322760681271 |
10 | 102222021205 |
11 | 3a396736567 |
12 | 17989b46331 |
13 | 9840c814a5 |
14 | 4d3a1d1273 |
15 | 29d435643a |
hex | 17cce84255 |
102222021205 has 16 divisors (see below), whose sum is σ = 126802137600. Its totient is φ = 79027922880.
The previous prime is 102222021191. The next prime is 102222021221. The reversal of 102222021205 is 502120222201.
It is not a de Polignac number, because 102222021205 - 225 = 102188466773 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355195 + ... + 574984.
It is an arithmetic number, because the mean of its divisors is an integer number (7925133600).
Almost surely, 2102222021205 is an apocalyptic number.
It is an amenable number.
102222021205 is a deficient number, since it is larger than the sum of its proper divisors (24580116395).
102222021205 is an equidigital number, since it uses as much as digits as its factorization.
102222021205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 930924.
The product of its (nonzero) digits is 320, while the sum is 19.
Adding to 102222021205 its reverse (502120222201), we get a palindrome (604342243406).
The spelling of 102222021205 in words is "one hundred two billion, two hundred twenty-two million, twenty-one thousand, two hundred five".
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